Improvement in watchmakers  lathes



D. M. WILLIAMS.

WATCHMAKERS LATHE.

No.176,568. Patented Apr'1125,1876.

llllllllllll ATTORNEYS.

NJEI'ERS. PHOTG-LITHOGRAPHEH, wAsmNGON. D C.

UNITED STATE-s DANIEL M. WILLIAMS,

PATENT OFFICE.

OF CALVERT, TEXAS.

IMPRCVEMENT IN WATCHMAKERS LATHES.

Specification forming part of Letters Patent No. 176,568, dated April25, 1876; application tiled March 13, 1876.

To all whom it may concer/n Be it known that I, DANIEL M. WILLIAMS, ofCalvert, in the county of Robinson and State of Texas, have in\'ented,anew and Improved WatchmakeI-Zs Lathe, ot' which the following is aspecification:

My invention consists of a novel contrivance of an adjustable bed.forvarying the height of the bed relatively to the centers for differentkinds of work; also,an adjusting tail stock, and an attachment forcttting 'gear-wheels and pinions, all as hereinafter described.

Figure l is a side elevation of the lathe adjusted for turning. Fig. 2is an end elevation, showing the adjustment for gear-cuttings. Fig. 3 isanother side elevationlfor turning, and Fig. 4. is a side elevation ofthe gear-cutting apparatus. 4

Similar letters of reference indicate corresponding parts.

A is the stationary part of the lathe carrying the live-spindle B andsupporting the bed C, which is clamped to it by the T-headed bolts D, soas to shift up and down when the screws are loosened. shifts the bed.The tail-stock F is pivoted to i the end of the`bed C by the clamp-boltG, so

that it can swing down out of the way, as in Fig. 2, when itis notrequired for use. l/Vhenv The adjusting-screw Ey by the hand-lever Q.The indexplate S of the gear-cutting centers is fastened by thelever-latch T working into notches in the edge of the plate, and havinga pointer, U, to gage the gear-holding centers R to the rotary cutter insetting the bed N and slide P. The cap V for holding the live-spindle inthe bearing ofthe head-stock is hinged to the stock, and fastened with asingle screw, W, to facilitate the changing of the mandrels, two ormore, with different centers or attachments being employed for diiierentkinds of work.

Having thus described myv invention, I claim as new and desire to secureby Letters Patentl. The bedG, adjustably connected to the head-stock Aby clamp-bolts D, and provided With the adjusting-screw E for supportinginterchangeable parts of the machine, substantially as specified.

2. The tail-stock F, pivoted to the bed C by clamp-screw G,substantially as specified.

3. The combination. of block H and adjusting-screw K, with the bed C andthe tail-stock F, substantially as specified.

4. The hed N, slide P, centers R, index-plate S,.and hand-lever Q,combined with the bed C, and head and tail centers of a lathe,substantially as specified.

5. The lever-latch T, combined with'the notched index-plate S, andhavinga gage, U, arranged relatively to to centers R, for gaging them tothe cuttingtool, substantially as Specified.

DANIEL M. WILLIAMS.

Witnesses J. S. WALToN, SAMUEL R. MGCEAEY.

